USB power supplies
USB power supplies convert alternating current from the outlet into low-voltage direct current for USB devices such as smartphones and tablets. They are compact and include protections against overcharging and short-circuiting, ensuring a safe and efficient charging process.- Raspberry Pi 4 powersupply - USB-C, 5.1V, 3A - EU Plug - White Raspberry Pi #SC0213 The Raspberry Pi 4 USB-C Power Supply in white provides a reliable and efficient power source for your mini-computer. Designed for safety and compatibility, it's the ideal choice for optimal performance.Delivered in 10 to 30 days€ 11,25 Incl. VAT
The 3 most popular USB power supplies
USB power supplies are handy devices that provide power to all sorts of electronic gadgets via a USB connection. They convert the normal power from your wall socket into the kind of power your USB devices need. Whether you need a simple charger for your phone or tablet, or a more powerful USB -C adapter with variable voltage for heavier devices like laptops, there is a wide range of USB power supplies available.
Specifications of USB Power Supplies
When powering electronics projects such as Arduino 's, Raspberry Pi 's and other projects, as well as charging phones and tablets, it is important to use a USB power supply that provides the correct voltage and current accurately.
Voltage (V)
For most USB chargers, the standard voltage is 5V, which is ideal for a wide variety of common devices. However, with the introduction of USB -C and Power Delivery (PD) technology, newer adapters can offer a variable voltage, which can be higher than 5V. This makes them suitable for powering devices that require more power or want to charge faster, such as laptops or larger electronics.
Current (A)
The amperage, measured in amps, indicates how much power a power supply can deliver. This is important for determining the speed at which a device is supplied with power. Higher amperage supports faster energy transfer, which is especially useful for the efficient operation of heavier devices.
Wattage (W)
Wattage is the product of voltage and current and indicates the maximum power the power supply can deliver. For example, a power supply that outputs 5V and 2A has a wattage of 10W (5V x 2A = 10W). This is especially important for devices that require a lot of power, such as LED lighting. A higher wattage means you can deliver more power, which is crucial for maintaining the brightness and functionality of high-power LEDs.
USB connector type
The type USB output on your power supply is crucial, as it determines how the power supply connects to your device. Power supplies with a fixed cable ensure that the cable always fits correctly with your device. Adapters with a loose cable, on the other hand, offer more versatility; you can use different cable types and swap them out depending on the needs of your project. This makes them ideal for situations where you are working with multiple devices or varying connections. For a detailed explanation of the different USB connectors, you can our blog If you are looking for specific cables, please check out our category USB cables for a wide selection.
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